US3208880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline storage battery and process for making the same
Assignee: VARTA AG
•
Filing: 1963-12-27
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Granted: 1965-09-28
•
Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Bode Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:38
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; H01M4/0438; H01M4/044; H01M10/00; H01M10/34; H01M4/045; H01M4/0452; H01M4/24; H01M4/36; H01M4/362; H01M4/364; H01M4/366; H01M4/64; H01M4/70; H01M4/80; H01M4/801; H01M2004/026; H01M2004/027; H01M4/38; H01M4/42; H01M4/44; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
78 words
IN THE PROCESS OF MANUFACTURING A STORAGE BATTERY OF THE PERMANENTLY HERMETICALLY SEALED ALKALINE TYPE IN WHICH THE STORAGE BATTERY CONTAINS A NEGATIVE ELECTRODE COMPRISING CADMIUM OXIDE, THE IMPORVEMENT WHICH COMPRISES INCORPORATING IN THE NEGATIVE ELECTRODE, PRIOR TO ASSEMBLING AND SEALING THE BATTERY, CADMIUM OXIDE AND A QUANTITY OF METALLIC ZINC WHICH IS IN AN AMOUNT EQUAL TO AT LEAST 5% BY EQUIVALENT WEIGHT OF THE CHARGE ACCEPTING CAPACITY OF SAID ACADMUM OXIDE, EQUIVALENCY BEING MEASURED IN AMPERE-HOURS.
Claim 2
Dependent Claim
78 words
IN THE PROCESS OF MANUFACTURING A STORAGE BATTERY OF THE PERMANENTLY HERMETICALLY SEALED ALKALINE TYPE IN WHICH THE STORAGE BATTERY CONTAINS A NEGATIVE ELECTRODE COMPRISING CADMIUM OXIDE, THE IMPORVEMENT WHICH COMPRISES INCORPORATING IN THE NEGATIVE ELECTRODE, PRIOR TO ASSEMBLING AND SEALING THE BATTERY, CADMIUM OXIDE AND A QUANTITY OF METALLIC ZINC WHICH IS IN AN AMOUNT EQUAL TO AT LEAST 5% BY EQUIVALENT WEIGHT OF THE CHARGE ACCEPTING CAPACITY OF SAID ACADMUM OXIDE, EQUIVALENCY BEING MEASURED IN AMPERE-HOURS.
Claim 3
Dependent Claim
89 words
A SEALED STORAGE BATTERY COMPRISING A POSITIVE ELECTRODE AN ALKALINE ELECTROLYTE, AND A NEGATIVE ELECTRODE CONTAINING CADMIUM OXIDE, METALLIC CADMIUM AND ZINC OXIDE, SAID ZINC OXIDE BEING IN AN AMOUNT OF AT LEAST 5% BY EQUIVALENT WEIGHT OF THE CHARGE-ACCEPTING CAPACITY OF SAID NEGATIVE ELECTRODE, EQUIVALENCY BEING MEASURED IN AMPERE HOURS, SAID METALLIC CADMIUM BEING IN AN AMOUNT WHICH IS IN EXCESS OF THE ELECTROCHEMICALLY EQUIVALENT AMOUNT OF CHARGED MATERIAL IN THE POSITIVE ELECTRODE; SAID EXCESS OF METALLIC CADMIUM BEING ELECTROCHEMICALLY EQUIVALENT TO THE AMOUNT OF SAID ZINC OXIDE.
Claim 4
Dependent Claim
89 words
A SEALED STORAGE BATTERY COMPRISING A POSITIVE ELECTRODE AN ALKALINE ELECTROLYTE, AND A NEGATIVE ELECTRODE CONTAINING CADMIUM OXIDE, METALLIC CADMIUM AND ZINC OXIDE, SAID ZINC OXIDE BEING IN AN AMOUNT OF AT LEAST 5% BY EQUIVALENT WEIGHT OF THE CHARGE-ACCEPTING CAPACITY OF SAID NEGATIVE ELECTRODE, EQUIVALENCY BEING MEASURED IN AMPERE HOURS, SAID METALLIC CADMIUM BEING IN AN AMOUNT WHICH IS IN EXCESS OF THE ELECTROCHEMICALLY EQUIVALENT AMOUNT OF CHARGED MATERIAL IN THE POSITIVE ELECTRODE; SAID EXCESS OF METALLIC CADMIUM BEING ELECTROCHEMICALLY EQUIVALENT TO THE AMOUNT OF SAID ZINC OXIDE.
References Cited (Backward Citations)
US2934581A
Cited
US2915576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |